What are the common etiologies of pneumopericardium?
Surgery, penetrating and/or blunt trauma (although blunt trauma is a rarer etiology), fistula, PPV
What is the most serious and feared complication of pneumopericardium?
Cardiac tamponade leading to heart failure
What classic radiological sign is associated with pneumopericardium?
Continuous diaphragm sign
Radiolucency surrounding lateral heart border signifying pneumopericardium. Significant pneumothorax in right lung with chest tube in place. Bilateral pulmonary parenchymal opacities. Endotracheal tube in mid trachea. Sub-diaphragmatic enteric tube in place. Surgical clips in the right perihilar region.